the artery
I am pretty sure it enters through the artery
Three examples would be: -digestive system, where nutrients enter the bloodstream -endocrine system, where hormones enter the bloodstream -immune system, where blood, organs, tissues, cells, and cell products work together to respond to dangerous organisms that enter the body. (taken directly from http://www.factmonster.com/ipka/A0774536.html)
Filtered by the kidney, liver, spleen, (am I missing any?) and enter the excretory system
Mitral valve prolapse allows blood to enter into the left atrium. This often results in the valve not forming a tight seal.
No, alveoli are not part of the excretory system. They are small air sacs in the lungs that facilitate gas exchange, allowing oxygen to enter the bloodstream and carbon dioxide to be expelled from the body. The excretory system, on the other hand, is responsible for eliminating waste products from the body, primarily through the kidneys, ureters, bladder, and urethra.
The intestine.
Cells use the circulatory system to help get rid of wastes. Diffusion occurs at the tissues, allowing for nutrients and oxygen to enter the cells, and for carbon dioxide and other wastes to be removes from the cells.The excretory system is a close partner with the circulatory system because they both remove wastes from the body. The excretory system removes excess, unnecessary materials from the body(as opposed to individual cells) so as to help maintain homeostasis within the body. It is responsible for the elimination of the waste products of metabolism as well as other liquid and wastes, such as urine and feces.So to simplify, individual cells use the circulatory system to remove wastes, while the excretory system removes wastes from the circulatory system.
The intestine.
yes
In an open system,both energy and matter flow.In an closed system only energy flow.In an isolated system neither energy nor matter flow.
A foraman which is what allows nerves and blood vessels to enter bones.
small intestine